Three-level two-stage decoupled active NPC converter with Si IGBT and SiC MOSFET

Di Zhang, Jiangbiao He, Sachin Madhusoodhanan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

16 Scopus citations

Abstract

This paper presents the operation principle and benefits of a novel power converter topology named three-level two-stage decoupled Active Neutral Point Clamped Converter (3L-TDANPC), which is implemented based on a hybrid utilization of Si IGBTs and SiC MOSFETs. The 3L-TDANPC converter can achieve high efficiency with limited number of SiC MOSFET modules while keeping balanced distribution among the switching devices, which helps manage the converter power ratings. In addition, in this 3L-TDANPC converter, the SiC MOSFET has a potential to ride through short circuit fault because of Si IGBT. The key challenges that are associated with system resonant current is investigated and the methods to damp such current are proposed and explained in detail. The simulation and double pulse test results based on a 1-MW 3LTDANPC converter prototype confirm the expected benefits of this proposed converter and the effectiveness of the proposed resonant current damping methods.

Original languageEnglish
Title of host publication2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
Pages5671-5678
Number of pages8
ISBN (Electronic)9781509029983
DOIs
StatePublished - Nov 3 2017
Event9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 - Cincinnati, United States
Duration: Oct 1 2017Oct 5 2017

Publication series

Name2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
Volume2017-January

Conference

Conference9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017
Country/TerritoryUnited States
CityCincinnati
Period10/1/1710/5/17

Bibliographical note

Publisher Copyright:
© 2017 IEEE.

Keywords

  • Multilevel converter
  • Resonance current damping
  • SiC MOSFET
  • Thermal balance

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Renewable Energy, Sustainability and the Environment
  • Control and Optimization

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